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Powertrain Acoustic Characterization at High Frequencies: Acoustic Source Modeling Based on Sound Intensity Measurements
Technical Paper
2003-01-1457
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Predicting the propagation of air-borne noise radiated by the powertrain at high frequencies requires acoustic power data for source modeling. This paper proposes a new model of source based on an acoustic intensity mapping in an anechoic test-bench. Given an energy propagation model, it is possible to back-propagate acoustic intensity data to a model of powertrain, by solving an inverse problem. Application of the method to a 2.0L gasoline powertrain has led to convincing results between 500 and 5,000 Hz, and most of the radiation patterns of the powertrain are well represented in space and frequency.
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Citation
Bousseau, Y. and Gagliardini, L., "Powertrain Acoustic Characterization at High Frequencies: Acoustic Source Modeling Based on Sound Intensity Measurements," SAE Technical Paper 2003-01-1457, 2003, https://doi.org/10.4271/2003-01-1457.Also In
References
- Brüel & Kjaer Technical Documentation - Sound Intensity Calibrator Type 3541 1990
- Wang S. Bernhard R.J. “A zero order Energy Finite Element Method: Theory, applications and similarity to SEA” Internoise 99 1827 1832 Fort Lauderdale, Fl 1999
- TIKHONOV A.N. ARSENIN V.Y. Solutions to ill-posed problems Winston-Wiley New York 1977
- BOBROVNITSKII Y.I. “The problem of vibrating field reconstruction: statement and general properties” 2001 Journal of Sound and Vibration 247 1 145 163